Electric furnace.



F, T. COPE.

ELECTRIC FURNACE.

APPLICATION men APR.27, 191s.

1,21 8,058. Patented Mar. 6, 1917.

at; M I, a

awf/f UNITED STATES PATENT OFFICE.

FRANK COPE, 0F ALLIANCE, OHIQ, ASSIGNOP. T0 ELECTRIC FURNACE COMPANY,

OF ALLIANCE, ll-116, is. CORI-OILATIOEY 0F OHIG.

ELECTRIC FURNACE.

Application filed April 27, 1915.

of electric furnace in which a trough containing a resistance material is located within the heating chamber of the furnace the objects of the present invention are to provide a furnace of the character referred to in which the resistance trough is so located within the heating chamber that air spaces are' provided around the trough allowing the air to circulate around the trough for the purpose of preventing excessive overheating of the same.

A further object is to provide such a furnace which is simple of construction and durable and cii'ective.

/Vith these objects view the invention consists in the novel construction and arrangement of parts, hereinafter described, illustrated in the accompanying drawings, and particularly pointed out in the appended claim, it being understood that various changes in the form. proportions, size and minor details of construction may be made Within the scope of the appended claim, Without departing from the spirit or sacrificing any of the advantages of the invention.

the drawings:

Figure l. is a transverse sectional view through a furnace constructed in accordancewith my invention.

Fig. Zis a longitudinal section taken on line .Z-2, Fig. l.

3 is a transverse sectional view of tly diiierent form of ldCB.

Sinrlar numerals relic. indicate correspondiuppar cuguout the several views of the drama.

Referring more cr'rpccially to the construction illustrated in the accompanying drawings, the numeral 1 indie 'lc the base of the furnace, said base being made in any suitable form and preferably composed of metal, feet 2 being formed thereon for the Specification of Letters Patent.

Patented Mar. 6, 1917. Serial No. 24,232.

purpose of raising the furnace oil of the floor. The heating chamber of the furnace 15 provided with the hearth 3, side walls 4 and 5, end walls 6, and roof 7 all of which are composed of fire brick or similar heat resisting material.

The refractory trough 8, is of the usual construction, being composed of suitable .heat resisting material, and contains the granular refractory, resistance material 9,

an electrode 10 being embedded Within the resistance material'near each end of the trough for the purpose of completingan electric c rcuit through the resistance material.

The refractory trough is supported upon a series of transverse supporting walls 11, said Walls being supported upon the hearth, and the trough is spaced away from the side walls and roof so as to allow the air to continually circulate around the trough, preventing excessive heating of the upon any one side and causing a more even temperature upon all sides of the trough. In the ordinary forms of electric furnace, such as are at present in use, the refractory trough is located upon the hearth or in eontact,.with one or more of the side Walls of the heating chamber, thus preventing the air from circulating entirely around the trough and causing the trough to become exccs ively' heated upon one or more sides in stead of evenly distributing the heat around all sides of the trough.

In Figs. 1 and 2 the letter A indicates a plurality of billets whiclrjare placed upon the hearth in order to be heated to the proper temperatur the billets being in serted and removed through the door located in the I of heating chamber. are placed beneath the refractory d between the port' will, of course, he anstoo furnaces in which the re- 'ory trout trough practically 'eqmvalen'b members a as dreams-2mm A are avi lap'zec i to be 7m: 8 instead of beneafih being inserted 221163 1 (1901s 12 and trough and the W511 2 battom Wall 3 s upon the rumi'inn {S med-- have ems suggests, v

U inven' 'zion, Within the scope of In resiszmce furnace, a mfmcmry tmugh a granuim l'esistance material contained 1 v-ez'selv refmctory 201 gh be? of 11 said trough of she furnace li ation of air tlzuw' fract-ory Waugh between said In testimony that I claim have hereunto subscribed my presence of 5W0 witnmses.

FRANK VIA 130mm.

wal dn the heatizlg the Im'nace so that Una trough 1s spaced upon AH sides from the and spaced transspnsed'walis 201' supportmg the qgyug, lower allowing an "011ml the re spaced wafls.

the above, I name 111 the 

